Since my research is related to multilingual dictionaries, I have the excuse of using this TikZ drawing of multilingual "thank you's" at the end of my presentations.
It had the advantage/disadvantage of distracting the audience enough from raising nit-picking, asked-just-for-sake-for-asking types of questions. :-)
If compiling this takes too long, the best way to use this is probably to use the result PDF directly via e.g. \includegraphics[page=1]{multiling-tq.pdf}
BTW -- can you spot the two fictional languages? :-)